公开(公告)号：US20060185422A1

公开(公告)日：2006-08-24

申请号：US11348332

申请日：2006-02-07

申请人： Kiyoshi Iwade ,  Shuhei Oe ,  Nobuyuki Murate ,  Rihito Kaneko ,  Yuichi Takemura

发明人： Kiyoshi Iwade ,  Shuhei Oe ,  Nobuyuki Murate ,  Rihito Kaneko ,  Yuichi Takemura

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU includes: an A/D (Analog/Digital) converter converting an analog signal transmitted from a knock sensor provided at a cylinder block into a digital signal; a bandpass filter passing only a vibration of a third order tangential resonance mode frequency band; and a bandpass filter passing only a vibration of a fourth order tangential resonance mode frequency band. The engine ECU determines whether the engine knocks, as based on the vibration selected by means of the bandpass filter or bandpass filter.

摘要翻译： 发动机ECU包括：A / D（模拟/数字）转换器，将设置在气缸体处的爆震传感器的模拟信号转换为数字信号; 仅通过三阶切向谐振模式频带的振动的带通滤波器; 以及仅通过四阶切向谐振模式频带的振动的带通滤波器。 发动机ECU基于通过带通滤波器或带通滤波器选择的振动来确定发动机是否爆震。

公开(公告)号：US20050274368A1

公开(公告)日：2005-12-15

申请号：US11146145

申请日：2005-06-07

申请人： Hideaki Itakura ,  Takanobu Kawano ,  Naoya Kato ,  Kenji Kasashima ,  Rihito Kaneko

发明人： Hideaki Itakura ,  Takanobu Kawano ,  Naoya Kato ,  Kenji Kasashima ,  Rihito Kaneko

IPC分类号： F02M25/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  G06F17/00

CPC分类号： F02D41/0042 ,  F02D41/0045 ,  F02D2200/0406

摘要： A controller for an engine including a fuel vapor processing mechanism. The controller determines the amount of fuel vapor drawn into an intake passage based on the concentration of fuel vapor purged into the purge passage. The controller corrects the fuel injection amount of a fuel injection valve in accordance with the determined amount of fuel vapor. The controller starts correcting the fuel injection amount from the cylinder that is undergoing an intake stroke when the crankshaft is rotated to a certain crank angle.

摘要翻译： 一种用于包括燃料蒸气处理机构的发动机的控制器。 控制器基于吹扫到净化通道中的燃料蒸汽的浓度来确定吸入进气通道中的燃料蒸汽的量。 控制器根据确定的燃料蒸汽量校正燃料喷射阀的燃料喷射量。 当曲轴旋转到一定的曲柄角时，控制器从正在进行进气冲程的气缸开始校正燃料喷射量。

公开(公告)号：US06623401B2

公开(公告)日：2003-09-23

申请号：US10137399

申请日：2002-05-03

申请人： Masanao Idogawa ,  Rihito Kaneko ,  Senji Kato ,  Hiroyuki Mizuno ,  Noboru Takagi

发明人： Masanao Idogawa ,  Rihito Kaneko ,  Senji Kato ,  Hiroyuki Mizuno ,  Noboru Takagi

IPC分类号： F02D4130

CPC分类号： F02D41/0057 ,  F02B17/005 ,  F02B23/10 ,  F02B23/104 ,  F02B2075/125 ,  F02D41/0065 ,  F02D41/3029 ,  F02D41/3064 ,  F02D2041/1431 ,  F02F3/26 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/47 ,  Y10T477/6333 ,  Y10T477/635 ,  Y10T477/675

摘要： A combustion control apparatus for an internal combustion engine that switches combustion modes at the proper timing. At the time of switching from a stratified-charge combustion mode to a homogeneous-charge combustion mode, the angle of an EGR valve is changed to the angle needed for the homogeneous-charge combustion mode first. When a predetermined delay time elapses after a request for switching the combustion mode has been made, substantial mode switching is carried out. The delay time is set based on engine speed and engine load.

公开(公告)号：US07677083B2

公开(公告)日：2010-03-16

申请号：US11410037

申请日：2006-04-25

申请人： Shuhei Oe ,  Kiyoshi Iwade ,  Kouji Ohara ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura ,  Shigeru Kamio

发明人： Shuhei Oe ,  Kiyoshi Iwade ,  Kouji Ohara ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura ,  Shigeru Kamio

IPC分类号： G01L23/22

CPC分类号： G01L23/221 ,  G01M15/12

摘要： An engine ECU executes a program including the steps of: setting a knock waveform model corresponding to engine speed sensed by a crank position sensor; calculating knock intensity N based on the result of comparison between a detected waveform and the set knock waveform model; when the knock intensity N is larger than a predetermined reference value, determining that knocking has occurred; and when the knock intensity N is not larger than the predetermined reference value, determining that knocking has not occurred.

摘要翻译： 发动机ECU执行程序，包括以下步骤：设置与由曲柄位置传感器感测的发动机转速对应的爆震波形模型; 基于检测波形与设定的爆震波形模型的比较结果计算爆震强度N; 当爆震强度N大于预定参考值时，确定发生爆震; 并且当爆震强度N不大于预定参考值时，确定没有发生爆震。

公开(公告)号：US07181338B2

公开(公告)日：2007-02-20

申请号：US11302318

申请日：2005-12-14

申请人： Yuichi Takemura ,  Rihito Kaneko ,  Kenji Kasashima

发明人： Yuichi Takemura ,  Rihito Kaneko ,  Kenji Kasashima

IPC分类号： F02P5/152 ,  G01L23/22

CPC分类号： G01L23/225

摘要： For each predetermined crank angular interval, an output of a knock sensor is separated into a plurality of frequency components through a plurality of band-pass filters, and peak values of each frequency component are extracted. Then, a mean and a variance of the peak values are computed for each frequency component. A maximum one of the computed means is selected, and the corresponding frequency component, which is associated with the maximum mean, is selected. It is then determined whether the noise is present based on a ratio between the variance of the selected frequency component and the corresponding mean. If the noise is detected in any of the frequency components, execution of knock determination may be prohibited, or ignition timing feedback control according to a result of the knock determination may be prohibited, or ignition timing may be corrected by retarding the ignition timing.

摘要翻译： 对于每个预定的曲柄角间隔，通过多个带通滤波器将爆震传感器的输出分离成多个频率分量，并且提取每个频率分量的峰值。 然后，针对每个频率分量计算峰值的平均值和方差。 选择计算出的装置中最大的一个，并且选择与最大平均值相关联的对应的频率分量。 然后根据所选择的频率分量的方差与相应的平均值之间的比率确定噪声是否存在。 如果在任何频率分量中检测到噪声，则可以禁止执行爆震判定，或者可以禁止根据爆震判定结果的点火定时反馈控制，或者可以通过延迟点火正时来校正点火正时。

公开(公告)号：US20060236754A1

公开(公告)日：2006-10-26

申请号：US11410037

申请日：2006-04-25

申请人： Shuhei Oe ,  Kiyoshi Iwade ,  Kouji Ohara ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura ,  Shigeru Kamio

发明人： Shuhei Oe ,  Kiyoshi Iwade ,  Kouji Ohara ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura ,  Shigeru Kamio

IPC分类号： G01L23/22

CPC分类号： G01L23/221 ,  G01M15/12

摘要： An engine ECU executes a program including the steps of: setting a knock waveform model corresponding to engine speed sensed by a crank position sensor; calculating knock intensity N based on the result of comparison between a detected waveform and the set knock waveform model; when the knock intensity N is larger than a predetermined reference value, determining that knocking has occurred; and when the knock intensity N is not larger than the predetermined reference value, determining that knocking has not occurred.

摘要翻译： 发动机ECU执行程序，包括以下步骤：设置与由曲柄位置传感器感测的发动机转速对应的爆震波形模型; 基于检测波形与设定的爆震波形模型的比较结果计算爆震强度N; 当爆震强度N大于预定参考值时，确定发生爆震; 并且当爆震强度N不大于预定参考值时，确定没有发生爆震。

公开(公告)号：US06910461B2

公开(公告)日：2005-06-28

申请号：US10845163

申请日：2004-05-14

申请人： Katsutoshi Tanei ,  Masanao Idogawa ,  Rihito Kaneko ,  Kenji Kasashima ,  Noboru Takagi ,  Isao Takagi

发明人： Katsutoshi Tanei ,  Masanao Idogawa ,  Rihito Kaneko ,  Kenji Kasashima ,  Noboru Takagi ,  Isao Takagi

IPC分类号： F02D13/02 ,  F02D35/02 ,  F02D37/02 ,  F02D43/00 ,  F02D45/00 ,  F02M25/07 ,  F02P5/152 ,  F02P5/153 ,  F01L13/00

CPC分类号： F02D13/0238 ,  F01L1/024 ,  F01L2001/0537 ,  F01L2001/34453 ,  F01L2800/00 ,  F02D13/0203 ,  F02D13/0261 ,  F02D35/02 ,  F02D35/027 ,  F02D37/02 ,  F02D41/006 ,  F02D2041/001 ,  F02M26/01 ,  F02P5/152 ,  Y02T10/18 ,  Y02T10/46 ,  Y02T10/47

摘要： Based on results of a knock control for adjusting ignition timing in accordance with the occurrence of knocking, an electronic control unit computes deposit required ignition timing akgrg, which is ignition timing determined by taking adhesion of deposits in an internal combustion engine into consideration. Based on the deposit required ignition timing akgrg, the electronic control unit reduces a vvt allowable variable range of a target VVT advancement amount, which is a control target value of a variable valve timing mechanism. The electronic control unit corrects a required ignition timing based on the actual VVT advancement amount vt, which is chanted according to the reduction of the allowable variable range of the target VVT advancement amount. As a result, problems resulting from the adhesion of deposits are effectively avoided.